Home / 3,492.20-4,819.11-1,999.06

Finding the Fourth Proportional to 3,492.20, 4,819.11 and 1,999.06

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Solution

The fourth proportional to 3,492.20, 4,819.11 and 1,999.06 is: 2,758.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,492.20 : 4,819.11 = 1,999.06 : x
  2. Step 2: Convert to fraction form
    3,492.20/4,819.11 = 1,999.06/x
  3. Step 3: Cross multiply
    3,492.20x = 4,819.11 × 1,999.06
  4. Step 4: Simplify right side
    3,492.20x = 9,633,690.04
  5. Step 5: Solve for x
    x = 9,633,690.04/3,492.20
  6. Step 6: Final answer
    x = 2,758.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.